Contact Info
Pure MathematicsUniversity of Waterloo
200 University Avenue West
Waterloo, Ontario, Canada
N2L 3G1
Departmental office: MC 5304
Phone: 519 888 4567 x43484
Fax: 519 725 0160
Email: puremath@uwaterloo.ca
Wednesday, March 28, 2012 — 3:30 PM EDT
Speaker:
Charles Doran, University of Alberta
Abstract:
We prove that specific toric Landau-Ginzburg models for rank-1 Fano threefolds are families of Shioda-Inose surfaces, thereby explaining the observed modular properties of their associated regularized quantum differential equations. We conjecturally extend modularity to Fano varieties of any rank, and discuss this conjecture on toric examples.
Tuesday, March 27, 2012 — 3:30 PM EDT
Speaker:
William Simmons, UIC - University of Illinois at Chicago
Monday, March 26, 2012 — 4:00 PM EDT
Speaker:
Charles Doran, University of Alberta
Friday, March 23, 2012 — 3:30 PM EDT
Speaker:
Ken Davidson, Pure Mathematics Department, University of Waterloo
Thursday, March 22, 2012 — 2:00 PM EDT
Speaker:
Colin Roberts, Pure Mathematics, University of Waterloo
Computing group cohomology using spectral sequences abstract:
We will begin by recalling the “down-to-earth” computation of the cohomol- ogy groups of a cyclic group with coefficients in Z from an earlier talk. Then we will show how the Lyndon / Hochschild - Serre spectral sequence can be used to obtain the known result.
Time permitting we will show how the same technique can be used to compute the cohomology groups of a dihedral group with coefficients in Z.
Wednesday, March 21, 2012 — 3:30 PM EDT
Speaker:
Cheol-Hyan Cho, Seoul National University
Lagrangian Floer homology and toric oribfolds abstract:
For toric manifolds, Lagrangian Floer theory of its torus fibers has deep relations to quantum cohomology, and mirror symmetry, where the mirror is described by LG superpotential W. We will give gentle introduction on this field, and discuss the extension to the case of toric orbifolds.
Friday, March 16, 2012 — 3:30 PM EDT
Speaker:
Jason Bell, Simon Fraser University
Thursday, March 15, 2012 — 3:30 PM EDT
Speaker:
Matthew Harrison-Trainor, Pure Mathematics
University of Waterloo
A low2 model of RT2 abstract:
We give a proof of Cholak, Jockush, and Slaman that there is an ω-model of RT2 consisting entirely of low2 sets.
Thursday, March 15, 2012 — 3:30 PM EDT
Speaker:
Maysum Panju, Pure Mathematics, University of Waterloo
Tuesday, March 6, 2012 — 3:30 PM EST
Speaker:
Spiro Kargiannis, Pure Mathematics Department, University of Waterloo
Gauge Theory and Calibrated Geometry: On Tian's 2000 Annals paper, Part II abstract:
I will go through Chapter 2 of Tian's paper in detail, on Price's monotonicity formula, Uhlenbeck's curvature estimates, and singular Yang-Mills connections.